Berlin 2018 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 72: Poster Session: Correlated Electrons
TT 72.40: Poster
Mittwoch, 14. März 2018, 15:00–19:00, Poster B
Magnetic properties of single crystalline clinoatacamite — •Jan Lennart Winter1, Leonie Heinze1, Dirk Menzel1, Stefan Süllow1, Pascal Puphal2, Cornelius Krellner2, Manfred Reehuis3, and Ralf Feyerherm3 — 1Institute for Condensed matter pyshics, TU Braunschweig, Germany — 2Physikalisches Institut, Goehte-Universität Frankfurt, Germany — 3HZB Materialien und Energie, Berlin, Germany
In recent years, clinoatacamite Cu2 Cl(OH)3 has been studied in the context of geometric magnetic frustration in a quantum spin system. Only, previous research has been performed on synthetic powder samples, raising questions about sample quality and (residual) magnetic anisotropy [1,2]. Here, for the first time, we report a detailed investigation on single crystalline clinoatacamite by presenting studies of the magnetic susceptibility/magnetization and by means of neutron scattering. Based on these measurements we derive the magnetic phase diagram, revealing a complex magnetic behavior with a multitude of different (field induced) phases. We discuss our results with respect to the role of magnetic frustration on the properties of clinoatacamite.
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